13. BILLSThe Bills had a fine offseason, shoring things up on both sides of the ball. Defensively, they landed one of the crown jewels of this free-agent class in Mario Williams, and also brought in defensive end Mark Anderson. On the other side of the ball, they secured new deals with two integral pieces: wide receiver Stevie Johnson and running back Fred Jackson. Chan Gailey deserves more credit than he receives. He improves every team he coaches.